SHIROMANI DAHAL( For Class-X)

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Sets Introduction Figure: Sets   Generally, a set is denoted by the capital letters of English alphabet A, B, C etc. and their members by small letters a,b,c etc. For example, the set of English vowels may be denoted by the capital letter V whereas its members a, e, i, o, u by small letters.  Expressing it in the form of the set V = {a, e, i, o, u} To indicate a member belonging to a set, symbol  ∈ V, and is read as "a belongs to V" To indicate that something doesn't belong to a set a symbol  ∉  V, and is read as 'p doesn't belong to V' The union of two sets is denoted by "U". For example, A U B is the union of two sets A and B. It is read as 'A union B'. This operation includes the two sets without repetition. The union of two sets A and B is A U B. The intersection of two sets is denoted by ∩. For example, A ∩ B represents the intersection of A and B. It is read as 'A intersection B'. This operation includes the elements of the two ...

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